5．选A。while引导并列句，表转折。

4．选D。what引导宾语从句，what在宾语从句做宾语。

3．选B。从in time知，remind 的内容为时间，所以选when。

2．选D。although引导状语从句，as引导状语从句时要用倒装语序。

1． 选D。what引导表语从句，what在从句中做宾语。

47. I grew up in Africa, _____ at least I should say that I spend much of the first ten years of my life there.

A. and　 B. or　　 C. so　　 D. but　

解析：

46. _____ makes this shop different is that it offers more personal services.

A. What　 B. Who　 C. Whatever　 D. Whoever　

(辽宁卷)

45.　 I was told that there were about 50 foreign students _____　 Chinese in the school, most ______ were from Germany.

A. study; of whom　　　　 B. study; of them

C. studying; of them　　　 D. studying; of whom　　

(辽宁卷)

44. A warm thought suddenly came to me ___ I might use the pocket money to buy some flowers for my mother’s birthday.

A. if　　 B. when　 C. that　 D. which　

(辽宁卷)

43.- Why didn’t you tell him about the meeting?

- He rushed out of the room ______ I could say a word.

A. before　 B. until　 C. when　　 D. after　

( 安徽卷)